EP 1803524 B1 20110420 - Laser hardening tool with an optical waveguide having a rectangular cross-sectional shape
Title (en)
Laser hardening tool with an optical waveguide having a rectangular cross-sectional shape
Title (de)
Laserhärtungswerkzeug mit einem ein rechteckiges Profil aufweisenden Wellenlichtleiter
Title (fr)
Outil de durcissement par laser avec un guide optique d'ondes ayant une section rectangulaire
Publication
Application
Priority
JP 2005378955 A 20051228
Abstract (en)
[origin: EP1803524A1] The present application provides a laser hardening tool (100) having little laser output loss. The laser hardening tool (100) condenses the irradiated beams (LB 1 ) from a semiconductor laser stack (120) via a condensing optical lens (134), and creates parallel light beams (LB 3 ) via a diverging optical lens (142). The laser beams (LB 4 ) having been bent by a first mirror (160) travels through an optical waveguide (150) having a rectangular cross-sectional shape. The laser beams (LB 5 ) having been condensed by a re-condensing optical lens (170) are irradiated through a nozzle (190) to subject a work to hardening. The number of reflections of the laser beams (LB 4 ) in the angular optical waveguide (150) is small, and thus the loss of laser output is reduced.
IPC 8 full level
C21D 1/09 (2006.01); C21D 1/34 (2006.01); H01S 3/00 (2006.01)
CPC (source: EP US)
B23K 26/0604 (2013.01 - EP US); B23K 26/0626 (2013.01 - EP US); B23K 26/352 (2015.10 - EP US); B23K 26/703 (2015.10 - EP US)
Citation (examination)
US 5080474 A 19920114 - MIYAMOTO ISAMU [JP]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1803524 A1 20070704; EP 1803524 B1 20110420; CN 100477418 C 20090408; CN 1990886 A 20070704; DE 602006021386 D1 20110601; JP 2007180385 A 20070712; JP 4865329 B2 20120201; US 2007158318 A1 20070712; US 7376329 B2 20080520
DOCDB simple family (application)
EP 06405536 A 20061220; CN 200610172512 A 20061226; DE 602006021386 T 20061220; JP 2005378955 A 20051228; US 61124306 A 20061215